1) What is the correct concept of the following term? Electrodes a) They function as conductors, transferring electrical impulses from the body to the ECG machine for analysis. b) Function by displaying the heart's electrical activity as a waveform. c) For the operation and accuracy of the ECG machine, spare parts are necessary for maximum performance and longevity. d) ECG equipment may have numerous leads, each of which provides different information about the electrical activity of the heart. 2) What are the characteristics of atrial flutter? a) No P-waves b) Absence of P waves before the QRS complex c) Many P-waves for a single QRS complex d) Normal T-wave 3) What does the ST interval reflect? a) It reflects the period between ventricular depolarization and ventricular repolarization. b) Reflects a period of electrical inactivity. c) It reflects conduction through the atrioventricular (AV) node. d) It reflects the initial and slow phase of ventricular repolarization. 4) What are the characteristics of a Complete Heart Block (CHB)? a) P-P intervals are normal but do not relate to the QRS complex b) Saw-toothed flutter appearance c) Chaotic and disorganized wave pattern d) PR interval is > 0.20 seconds and consistent  5) In the secondary evaluation of ACLS, we use the acronym AVPU? a) True b) False 6) In the BLS evaluation, what is the second step? a) Defibrillation b) Circulation c) Activate the emergency response system and obtain a AED. d) Check responsiveness 7) In the following image, is the rhythm defibrillable or not? Which rhythm is it? a) Taquicardia ventricular, non defibrillable rhythm b) Taquicardia ventricular, defibrillable rhythm c) Supraventricular tachycardia, defibrillable rhythm d) supraventricular tachycardia, non defibrillable rhythm 8) How long should the PR interval last? a) 0.12 to 26s b) 0.12s to 0.22s c) 0.12 s to 0.20 s d) 0.12 to 23s 9) How long should the QRS interval last? a) 0.03s to 0.10s b) 0.04s to 0.10s c) 0.05s to 0.10s d) 0.06 s to 0.10 s. 10) In the BLS, in the first step (Check responsiveness), how long should the scan last? a) 5-10 seconds b) 5-15 seconds  c) 5-20 second  d) 5-25 seconds

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